I foresee them either
1) Allowing us to Dragonride anywhere, or
2) Giving us a increased speed training, like 700% mounted speed or something.
I agree that it feels SOO Slow even with 310% mount speed, that they have to do something. If they do allow Dragonriding to be done in the azeroth and stuff, I hope they allow us to use our regular mounts to do so, or give us to option to skin our dragon to one of our acquired mounts.